This is my favorite quote from Tolkien and, indeed, my life credo so I've decided to give it a new "Hobbit" sparkle
I have always found this statement true and deeply intriguing, because it seems both religious ("given to us" - by Someone) and atheistic (time equals life and it's all there is). And, no matter if you believe or not, it makes you feel optimistic for it gives you faith that some things were not yet written down by Fate, that some things are left for you and for you alone to face or to diminish.
So, even if we go down fighting the dragon tomorrow, let us fall with a smile - for each day we have dared to do the things that most will only ever dream about
Things we believe in change with time but what I find truly wonderful about Tolkien's books is that - by making us believe in honor, loyalty, bravery or noble sacrifices - he ultimately makes us believe in one another.